From the way it is going with the checker flag and what not from Haruna being indescive and Lala being regulated to secondary on Rito list, even Run. Feels like Momo plans will start coming apart at the seams. I think no matter how hard she try that even though Rito might go along with it the plan and simple fact of the matter is that he have no balls what so ever. There is no one out there currently in the manga right now that is telling him to man the fuck up.
I think ultimately Momo will be heart broken when Rito just shut down the Harem plan and then the foreshadowing of the Devilluke queen. I think out of all the strong character maybe she might be the one that tell Rito to man the fuck up and stop being an indescive pussy.
The harem plans need Rito to actually commit himself to the girls happiness and not be wishy washy about it which is why Momo plan was doom from the start though she did get him to think about it and like she say, ease him into it.
I predict that the final arc would actually be Rito going one by one to promise the girls happiness as something bad and sad would probalby happen before hand. Of course like the first TLR it could just end ambigously but if he actualy put an end to the story and resolve it for real that'll be awesome.
What do you guys think?